
White to move and mate in 2.
Answer:
Try: 1. Nb6, Kb7; 2. ?
Try: 1. Nd6/e7, Kxa7; 2. ?
Try: 1. Qe7/f7, Bc7; 2. ?
Try: 1. Qb4, Rb6; 2. ?
— Key: 1. Qd6 (threats Rb8 and Bc6)
If 1. …Rxd6; 2. Rb8 mate
If 1. …Bxd6; 2. Bc6 mate

White to move and mate in 2.
Answer:
Try: 1. Nb6, Kb7; 2. ?
Try: 1. Nd6/e7, Kxa7; 2. ?
Try: 1. Qe7/f7, Bc7; 2. ?
Try: 1. Qb4, Rb6; 2. ?
— Key: 1. Qd6 (threats Rb8 and Bc6)
If 1. …Rxd6; 2. Rb8 mate
If 1. …Bxd6; 2. Bc6 mate